Message in Russian (Русский)![](/img/flags/ru.png)
Тип данных union должен быть производным от типа данных atomic или list.
Unlocalized message![](/img/flags/en.png)
It is an error if a union type has a member with variety union and this member cannot be substituted with its own members. This may be due to the fact that the union member is a restriction of a union with facets.
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